Earthy palette
Indigo Oasis
Dark anchor, working middle, light release: #3d4800, #617100, #7b8c2c, #8a9a4e, #a6b669 form a tetradic earthy set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
yellowearthyfive-stop
#3d4800
#617100
#7b8c2c
#8a9a4e
#a6b669
The generator opens with #3d4800 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.